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TROUBLE DIAGNOSIS
Fig. 6 Trouble Diagnosis Flow when LOW VOLTAGE “SHUT DOWN” occurs
YES
YES
NO
NO
YES
NO
Unplug Connectors connecting High
Voltage and POWER PCB(CN806)
AC PWR "ON" =>
PWR "ON" with Remote Controller
"SHUT DOWN"
occur?
AC PWR "OFF" =>
AC PWR "ON" =>
PWR "ON" with Remote Controller
AC PWR "ON" =>
PWR "ON" with Remote Controller
Unplug Connectors connecting High
Voltage and DIGITAL PCB(CN601)
Unplug Connectors connecting High
Voltage and DATA PCB(CN7)
AC PWR "OFF"
"SHUT DOWN"
occur?
Replace High
Voltage Or
SCAN PCB
"SHUT DOWN"
occur?
Replace DIGITAL
Or DATA PCB
Replace MAIN
PCB
Replace SUB
PCB
Unplug Connectors connecting SUB
and POWER PCB(CN801)
Unplug Connectors connecting High
Voltage and POWER PCB(CN805)
Unplug Connectors connecting SUB
and MAIN PCB(JP117)
Turn AC PWR OFF
Set VOLTAGE SWITCH of POWER
PCB to LOW (Picture 6-2)
Summary of Contents for DPP-4242NAS
Page 15: ...14 DT 4280NH BLOCK DIAGRAM 3 BLOCK DIAGRAM...
Page 43: ...42 Main PCB Trouble Diagnosis If above signal do not appear replace MAIN PCB...
Page 55: ...54 11 STRUCTURE OF PDP SET...
Page 59: ...58 STRUCTURE OF PDP SET COMPONENTS PICTURE REMARK 5 FRONT MASK 6 FILTER GLASS 7 BACK COVER...
Page 60: ...59...
